diff options
Diffstat (limited to 'services/surfaceflinger/Layer.cpp')
-rw-r--r-- | services/surfaceflinger/Layer.cpp | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp index 9c04d59..64f72d5 100644 --- a/services/surfaceflinger/Layer.cpp +++ b/services/surfaceflinger/Layer.cpp @@ -55,6 +55,7 @@ Layer::Layer(SurfaceFlinger* flinger, mCurrentTransform(0), mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), mCurrentOpacity(true), + mRefreshPending(0), mFrameLatencyNeeded(false), mFrameLatencyOffset(0), mFormat(PIXEL_FORMAT_NONE), @@ -97,12 +98,7 @@ void Layer::onFirstRef() mSurfaceTexture = new SurfaceTextureLayer(mTextureName, this); mSurfaceTexture->setFrameAvailableListener(new FrameQueuedListener(this)); mSurfaceTexture->setSynchronousMode(true); -#ifdef USE_TRIPLE_BUFFERING -#warning "using triple buffering" - mSurfaceTexture->setBufferCountServer(3); -#else mSurfaceTexture->setBufferCountServer(2); -#endif } Layer::~Layer() @@ -113,7 +109,7 @@ Layer::~Layer() void Layer::onFrameQueued() { android_atomic_inc(&mQueuedFrames); - mFlinger->signalEvent(); + mFlinger->signalLayerUpdate(); } // called with SurfaceFlinger::mStateLock as soon as the layer is entered @@ -407,16 +403,37 @@ bool Layer::isCropped() const { // pageflip handling... // ---------------------------------------------------------------------------- +bool Layer::onPreComposition() +{ + // if there was more than one pending update, request a refresh + if (mRefreshPending >= 2) { + mRefreshPending = 0; + return true; + } + mRefreshPending = 0; + return false; +} + void Layer::lockPageFlip(bool& recomputeVisibleRegions) { if (mQueuedFrames > 0) { + + // if we've already called updateTexImage() without going through + // a composition step, we have to skip this layer at this point + // because we cannot call updateTeximage() without a corresponding + // compositionComplete() call. + // we'll trigger an update in onPreComposition(). + if (mRefreshPending++) { + return; + } + // Capture the old state of the layer for comparisons later const bool oldOpacity = isOpaque(); sp<GraphicBuffer> oldActiveBuffer = mActiveBuffer; // signal another event if we have more frames pending if (android_atomic_dec(&mQueuedFrames) > 1) { - mFlinger->signalEvent(); + mFlinger->signalLayerUpdate(); } if (mSurfaceTexture->updateTexImage() < NO_ERROR) { @@ -519,6 +536,10 @@ void Layer::lockPageFlip(bool& recomputeVisibleRegions) void Layer::unlockPageFlip( const Transform& planeTransform, Region& outDirtyRegion) { + if (mRefreshPending >= 2) { + return; + } + Region dirtyRegion(mPostedDirtyRegion); if (!dirtyRegion.isEmpty()) { mPostedDirtyRegion.clear(); @@ -552,9 +573,9 @@ void Layer::dump(String8& result, char* buffer, size_t SIZE) const snprintf(buffer, SIZE, " " "format=%2d, activeBuffer=[%4ux%4u:%4u,%3X]," - " transform-hint=0x%02x, queued-frames=%d\n", + " transform-hint=0x%02x, queued-frames=%d, mRefreshPending=%d\n", mFormat, w0, h0, s0,f0, - getTransformHint(), mQueuedFrames); + getTransformHint(), mQueuedFrames, mRefreshPending); result.append(buffer); |